Constructive art构成艺术constructiveadj.建设性的；构造上的；作图的constructive reduction learning结构归纳学习constructive inductive learning结构性的归纳学习法Constructive cognition paradigm建构认知范式constructive personality traits构念人格特质constructive estimation methods结构估计法constructive crossover operator建设性交叉算子constructive post - modernism建构性后现代主义constructive theory of functions函数构造论constructive placement algorithm构造性布局算法constructive malice afore thought[法] 推定的恶意预谋

1. By use of multigrid method, this paper proposes a preconditioned iteration method solving the boundary value problem of elliptic equations, the proof of convergence is given.
   摘要利用多重网格法的思想，构造出一种求解椭圆型方程边值问题的预处理迭代格式，并给出了收敛性证明。